Machine for treating coated canvas.



A. THOMA.. MAGHINE FOR TREATING GOATED CANVAS.

APPLICATION FILED MAY 15, 1905.

Patented My 11, 1909.

ANDREW THOMA, OF CAMBRIDGE, MASSACHUSETTS, ASSTGNOR, BY Mrngmzzm TO CLIFTON MANUFAQTURING COMPANY, OF BOSTON, lliASSACHUSElT TIGN "SF NEW JERSEY.

no. senses.

EEAYJHINE 33GB TREATING Glhll'iillfi.

Application filedlriay l5, i905. Serial H 0. 260,659.

To all whom t'z/mcg concern:

Be it known that l, ANDREW THoMA, a .itizen of; the United States, residing at Qarnbridge, in the county of Suffolk and improvement in Machines for Treating @oatedv Canvas, of which the following description, in connection with the accompanying drawings, is a specification, like numerals onthe drawings representing like parts. I

in the United States patent granted to me February 13, 1906, No. 812,388, upon an apphcetion filedlllarch 13, 1905, l claimed a method of making inner-soles and the like chicle or otherenumerated gums, an 75% of resinous gutta percha; passing the oated duck through a bath of hot water to soften and render the same pliable, then passing the duck through an oven or heating device for imparting a stickiness to the coating, thereby bringing the duck into an adhesive condition ready for application to a' piece of leather in the manufacture of insoles, such, for example, as Gem insoles, which are illus- 5 trated with substantial accuracy in the patent to Cole No. 575,460. The present invention consists of a machine for carrying out the latter part of that method, toovrt, machine for treating prop- LO erl-y coated duck or canvas to bring it into condition for application to pieces of leatherto form innersoles.

In the accompanying drawings, Figure 1 is a longitudinal, sectional view of a preferred form of mechanism; Fig. 2 is a top plan View thereof; Fig. 3 is a fragmentary perspective View.

tion is described as follows 5 The operator Works on a table 1, the fabric strip 2" being delivered down an incline, 3 from a feed Wheel e where it may be cut sit by the operator with a pairof scissors or by aknife 5 pivoted at'fi, the strip being guided State of Massachusetts, have invented an nature, and then one or more coatings of a from thewheel Whenever it is d The illustrated emhodinient of my inven e Sllfiiill SEiYp'EJ-OY roll ii? of the strip 2 is led over guide roll 13 mount-ed e cove ll), down through slit 1% into the tank, and around a second guide roll 15 vhcnce it passes through more or less the Water anl outthrou'gh a deliver 0 china 16 to the feed Wheel i.

immediately below said i, and near the end of the tank 8 from which thestrip emerges, I provide a gas heat r i7, located beneath a shield 18, for applying an intense "heat directly to thecoated side of the strip Just as the latte:

=eaves the ter hath. This gas heater 1? mounted in slide eye 19, and has handles 20 so the it may he quickly lowered and thereby moved away c lred te1n porarily to interrupt the use ofthe machine orwhenever for any reason the heat must be removed from the canvas for a few moments. Beneath the tank is a gas heater 21 for keeping the Water hot. A. continuous supply of hot Water may he lril rshed through a pipe 22 leading from a source of Water supply 23 connected by a pipe with a steam supply, said pipe having a 25 so that any de sired amount of steam may he admitted to heat the water. An overflow pipe 26 is provided in the tank for limiting tne height of the water.

. The feed Wheel l may he tur ed to feed for- Ward thestrip of canvas h 153 pull exert-ed by the operator on the strip. in order to revent the coating from adhering to-his iand, he may coat his thumb and finger with Vaseline. 4

Mechanism is provided for rotating the feed Wheel to feed the strip of canvas out onto the table. A ratchet Wheel is so cured on the shaft 28 of the feed Wheel-i, and an arm 29 loosely mounted on said shaft 3.0 carries a pawl 80 which engages the rate et Wheel. The forwardmovements of the awl advance the feed Wheel step by step to feed lOO . pressing is rendered pliable and put into cpndition to The invention is not 6 5 more be shapedand formed to the configuration of the innersole body, and then While still moist the coated side thereof is rendered stick or tacky by the application of the heat supp ied by the gas heater 17,.the sticky side being then on the outside of the feed wheel 4, by which it is carried to the table ready to receive the innersole and to be cut off in SUI ll.

able lengths by the cutting apparatus 5. If the o orator is obliged to leave the machine a whi e, he may grasp the handles 20 and depress the gas heater (which is connected to the source of gas supply by a rubber tube or other flexible connection), and when he returns-he may lift the gas heater, thus bringing it back into heating position, no coating having been spoiled the while. When the roll 12 is used up a new rollis put in place andIits end is pinned to the end of the old striIp. The work then proceeds as before.

"he heater 17 and feed wheel 4 are inclosed by a casing 35. The moisture evaporated from the canvas being retained by the casing in contact therewith, continues the softening of the canvas and the coating. This softening of the coating by the moist heat operates with the dry heat to produce a astingstickiness, that is to say, the rosence of moisture on and about the coat ing when it is heated to render it sticky in creases the duration of its tacky condition. A door 36 provides for access to the inside of the casing.

In the apparatus described a hot water tank is used for tempering the strip of canvas and dampening its coating, but moist steam 3 may be used in place of hot water if desired. More or less heat will be'required to soften and render the coating sticky as the duration of the exposure of the strip to the heat is shorter or longer, and as the nature of the compound with which the strip is coated varies. With a coating of-.-the .compound hereinbefore described, and with the coinparatively short time of exposure of the strip "to the heat in'the machine illustrated in the drawin s, the heat to which the coating is expose should be intense, but if an apparatus provided fora longer exposure to the heat, a lower tem erature would suffice.

form of heating apparatus, as any heating erator may advance the strip by deeric manner.

said tank, means orao 'mited to any particular contrivance adapted to apply 'the proper amount of heat to render the coating sticky and tacky is within the purview of the invention. I

My invention is susceptible 10f embodiment in other constructions, so therefore,

' except where the claims are limited by their terms they are to be understood as directed to cover the invention in a broad and gen- I claim. 1. A machine for treating gutta' percha coated canvas and the like to render the canvars-flexible and thecOating sticky, having, in combination, a moistening device for 'tempering the canvas and dampening the coating, a heating contiivancefor heating the coating to ten er it sticky, and supports or guides leading the canvas first to the moistening contrivance. I

2. In apparatus of the class described, means to sup ort the coated fabric and cause itto travel ongitudinally, means to apply moisture to said fabric, and means to subject simultaneously corres onding portions of fabric to dry-heat to so ten and render tacky the coating thereof.

A machine for applying innersole reinforcingfabric, comprising a moistening tank, means for supporting a roll of cement-coated fabric, means for asemg said fabric throu h opposite sides of said moistening both the coated side and the uncoated side, means for applying an intense heat to the moistened coated side of said fabric, and feeding mechanism for en agin solely the uncoated side-of said fabric an feeding the same forward.

forcing fabric comprising a closed moistening tank for containing a moistenmg fluld,

means for supporting a roll of cement-coated.

fabric, means or a plying an intense heat to the moistened fabric, a work table, and feeding mechanism for engagin the uncoated side only of said fabric an delivering the same to said table, said machine being constructcd tomaintain the coated side of said fabric untouched during its passage from said heating means to said table.

5. A machine for applying innersole rein forcing fabric, comprising a moistening tank, .mlet and outlet pipes for maintaining. a

moistening bath therein, means for supporting a roll of cement-coatedfabric, means forpassing said fabric through said moistening device and then to the heating lying moisture to t e abric for thoroughly 4. A machine for applying innersole reinbath, means for applying an intense heat to said coated fabric, a work table, and means for feeding said fabric from said heating means to said table, said fabric in its passage through said moistening tank and from the latter to said table being engaged solely on its unoofated side.

6. A machine for applying inner sole reinforcing fabric, comprising a moistening tank, means for supporting a roll of cement-coated fabric, means in said tank for thoroughly moistening said fabric, a work table, feedin mechanism for delivering said fabric to said table While still moist, and means forrendering the coated side of said fabric tacky during its progress to said table.

7. A machine for applying innersole reinforcingfabric,- comprising means for delivering a continuous web or stri offabric previously coated on one side onl with cement, moisture-applying means for moistening said web, a work table, web-severing means, feeding mechanism for delivering said fabric while still moist with its uncoated side upon said table to be severed, and means for rendering the coated side of said fabric tacky during its progress through the machine to said'table.

8. A machine for applying innersole reinforcing fabric, comprising means for delivering a continuous web of fabric previously coated with cement on one side only, mois ture-applying means containing water or steam for -a plication to said previously cemented we feed pipes for supplying said water or steam, means for enga mg the uncoated side of said web for mova ly sup orting the web and maintaining its coate side untouched, a table for receiving the web from said engaging means, severing means cooperating therewith, and means out of contact with the coated side of said web for rendering the latter tacky durin its progress through the machine to said ta le.

9. A machine for applying innersole reinforcing fabric, comprising means for delivering a continuous web of fabric previously coated with cement on one side only, moisture-applying means containing water or steam for application to said previously-ce- -1nented web, feed pipes for supplying said water 11' steam. means for applying heat to said web for rendering the coated side thereof tacky in its progress throu h the machine, and cooperating means com ined with the aforesaid mechanism to maintain said coated side undisturbed and deliver the same to be cut in a moist and tacky condition.

10. A machine for applying innersole reinforcing fabric, comprising means for delivering a continuous web of fabric previously coated with cement on one side only, moisture-applying means containing water or steam, a feed drum, and means cooperating therewith for rendering the coated side of saidfabric tacky while being fed through the machine.

11; A machine for applying innersole reinforcing fabric, consisting of a moistening tank, means for supporting a roll of coated fabric adjacent thereto, means for delivering said fabric within said tank, means for pass ing said fabric back and forth in said tank for affording a long extent of travel within the tank, means for maintaining a hot fluid bath within said tank for enveloping said fabric, a work table, feeding mechanism for engaging the nncoated side of said fabric and feeding the same from said tank to said table, and means intermediate said tank and table for applyin to the coated side of the fabric an intense ocal heat.

12. A machine for a'pplyin innersclc rein forcing fabric, "consisting o' a moistening tank, means for supporting a roll of fabric, means cooperating with said tank for enveloping a considerable portion of said fabric in the moistening bath of said tank, a work table, feeding mechanism for engaging the uncoated side of said fabric and feeding the same from said tank to said table, means intermediate said tank and table for applying to the coated side of the fabric an intense local heat, and mechanism for separating momentarily at will said heating means and coated fabric.

'13. A machine for appiying innersoie reinforcing fabric, consisting OJ. moistening tank, means for-delivering thereinto a cement-coated strip, means within said tank for applying moisture to the opposite sides said strip, a work table, feeding mechanism for engaging the uncoated side of said strip and delivering the strip to the table, heating means for applying an intense locai heat to the coated side of the fabric, and operating means for operating said feeding mechanism step by step.

14. A machine for appiying innersole rein forcing fabric, consisting of a moistening tank, means for delivering thereinto a cement-coated strip, means within said tank for applying moisture to the opposite sides of said strip, a work table, containing means for cutting off portions of said strip as the latter is fed along, feeding mechanism for engaging the uncoated side of said strip and delivering the strip to the table, and heating means for applying an intense local heat to the coated side of the fabric,

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

ANDREW THOMA Witnesses:

GEO. H. biz; ZWELL, M. A. Jone.

ill; 

